A Look At AMD’s Radeon RX Vega 64 Workstation & Compute Performance

After months and months of anticipation, AMD’s RX Vega series has arrived. The first model out-of-the-gate is the RX Vega 64, going up against the GTX 1080 in gaming. In lieu of a look at gaming to start our Vega coverage, we decided to go the workstation route – and we’re glad we did. Prepare yourself to be decently surprised.

Introduction, A Look At AMD’s Radeon RX Vega 64

When most people receive the latest top-end graphics card from AMD or NVIDIA, they get straight to testing its gaming performance. Me? Well, I’m not most people. I am hoping that there is some method to my madness, though. Hear me out.

AMD’s Radeon RX Vega is one of the worst-kept secrets in the history of the industry. Well before embargo-abiding press could release details, leakers around the globe told us everything we need to know. That includes relative performance to NVIDIA’s GeForce GTX 1080, the fact that it’s going to run hotter and draw more power over the competition, and that overall, it’s not the launch AMD was hoping for.

As we were allowed to reveal a couple of weeks ago, the $499 USD RX Vega 64 is designed to go up against NVIDIA’s GeForce GTX 1080, also priced at $499 USD. At the moment, though, the least expensive GTX 1080 I can find on Amazon is ~$539 USD. It’s not expected that Vega 64 (and 56) will launch with their SRPs in tact (current listings have had Vega at well over $1000), so the sad reality is, you’re going to be paying a premium on any GPU solution right now, unless you happen to get lucky.

Back to the story at hand, based on the myriad leaks that occurred surrounding RX Vega, which have made it sound like Vega 64 will never actually be able to beat the GTX 1080 at gaming, I decided to take a look at this card first from a workstation / compute perspective, to see if any unexpected advantages could be seen. Perhaps surprisingly, there are indeed some, and some of those are downright impressive.

Admittedly, another reason I decided to take a look at the compute performance first is because our respective test rig was still hooked up and wrapping up testing conducted since I posted my look at AMD’s Radeon Pro WX 3100. In that review, six GPUs were tested in total; for this one, that’s been bumped to ten.

This is going to be the first of at least three articles surrounding workstation and gaming performance of RX Vega. This article sees the Vega 64 tackle the usual gauntlet of workstation tests, whereas the next article will took an in-depth look at gaming performance in our apples-to-apples tests. For those wanting quick and dirty gaming results, I have published a couple here. You can have a look at the reviewer’s kit we received right here.

AMD Radeon Series

Cores

Core Base MHz

Core Boost MHz

FP32 (TFLOPS)

FP16 (TFLOPS)

Memory

Bandwidth

TDP

Radeon RX VEGA 64 LCE

4096

1406

1677

13.7

27.5

8192 MB

484 GB/s

345W

Radeon RX VEGA 64

4096

1247

1546

12.66

25.3

8192 MB

484 GB/s

295W

Radeon RX VEGA 56

3584

1156

1471

10.5

21

8192 MB

410 GB/s

210W

Radeon R9 Fury X

4096

1050

–

8.6

4096 MB

512 GB/s

275W

Radeon R9 Fury

3584

1000

–

7.16

4096 MB

512 GB/s

275W

Radeon R9 Nano

4096

1000

–

8.19

4096 MB

512 GB/s

175W

Radeon RX 580

2304

1257

1340

6.17

8192 MB

256 GB/s

185W

Radeon RX 480

2304

1120

1266

5.83

8192 MB

256 GB/s

150W

Radeon RX 570

2048

1168

1244

5.1

4096 MB

224 GB/s

150W

Radeon RX 470

2048

926

1206

4.94

4096 MB

211 GB/s

120W

Radeon RX 560

1024

1175

1275

2.61

4096 MB

112 GB/s

80W

Radeon RX 460

896

1090

1200

2.15

4096 MB

112 GB/s

75W

Radeon RX 550

512

1100

1183

1.21

4096 MB

112 GB/s

50W

I mentioned at the outset that Vega’s higher-than-desired power consumption hasn’t been a secret, and the rated spec of 295W TDP for Vega 64 confirms that (RX 580 is 185W, by contrast). This unfortunately leads me to the first major complaint about Vega 64, or at least this particular Vega 64. The “reference” cooler (if you want to call it that) looks nice, but it’s far from being an ideal solution. The card will run hot, as 295W would suggest, but to the point where throttling can take place.

The fact that the liquid-cooled version of Vega 64 exists highlights the fact that the GPU itself can achieve far greater performance than this RX 480-style cooler can complement. Sometimes, AMD and NVIDIA release new GPUs to reviewers without a reference version; companies like ASUS, GIGABYTE, MSI, PowerColor, or others, will send us custom designs. The GTX 1050 and 1050 Ti were sampled like this, and I truly feel Vega 64 should have been, too.

A collector’s Vega die given to press

The fact of the matter is, reviewers can’t show Vega 64 or 56 in the light they should actually be shown. Some reviewers may have received the liquid-cooled version of the card, and I’d expect to see huge gains in performance there. And, better still, the card is sure to run cooler, with reduced chance of ever throttling. If these reference designs mimicked an ASUS STRIX, with three large fans, I am sure that would have aided in performance as well.

The moral of the story is, at some point soon, we need to look at vendor cards once they begin to hit the market, and hopefully at that time, drivers will be even better optimized, giving us a nice overall uptick in performance overall. Still, this acts as a good first test – just don’t treat the performance as gospel. Flat out, I would not recommend buying a Vega card with this reference cooler. It can’t handle the heat, and as a result, throttling can occur, and dBAs will raise.

Testing AMD’s Radeon RX Vega 64

Alright, from the get-go, a couple of things need to be made clear. The performance seen on RX Vega 64 is not meant to be representative of AMD’s workstation and compute performance on Vega in general. The upcoming WX 9100 and the preexisting Vega Frontier Edition are going to be equipped with Pro-specific optimized drivers, so while some performance will be expected here, some won’t be.

AMD didn’t send out Vega FE review samples, so this is my very first look at Vega in this context. I will be able to add some Vega FE results to our charts in the weeks ahead, nonetheless, and likewise, a Quadro P5000 is currently en route to help complete the overall look at current WS GPU options.

On the following pages, I’ll be putting AMD’s Radeon RX Vega 64 through a gauntlet of real-world and synthetic tests, utilizing apps from Autodesk, Adobe, SPEC, SiSoftware, and a handful of others (including light gaming tests for good measure).

All tests are run at least twice to produce an accurate result, and if for some reason an odd result creeps up, I do a third run. In the case of this particular review, no tests had to go that route, as most of the benchmarks are very good at delivering similar results with each repeated run.

The Windows 10 Pro (Creators Update) install used for testing has a couple of things disabled: User Account Control, Firewall, Search Indexer, OneDrive, and all notifications. During the install, everything on the Customize screen was disabled. All testing is conducted at 2560×1440 resolution (with the exception of 4K 3ds Max testing), with driver Vsync options left default.

Techgage’s workstation GPU test PC is built to be reflective of a high-end desktop that rules out as much as it can of bottlenecks. Intel’s top-end Core i9-7900X is used here, giving us a ton of breathing room on the CPU side. Kingston’s super-fast KC1000 M.2 SSD and 64GB of its HyperX FURY DRAM gives us the same breathing room on the storage and memory side.

The benchmark results are categorized and spread across the next six pages. On page 2, AMD’s ProRender plugin is used in Autodesk’s 3ds Max 2017 to render two scenes, while two de facto benchmarking tools, as well as a newbie, wrap it up: Cinebench, LuxMark, and V-Ray Benchmark. Page 3 is home to an encode and CAD test, thanks to Adobe’s Premiere Pro CC 2017 and two 4K projects, and also Autodesk’s AutoCAD 2016, exercised through the use of the excellent Cadalyst benchmark.

SPEC produces so many benchmarks worthy of inclusion in our workstation GPU content, that it’s earned itself its own page. So on page 4, SPECviewperf helps us gain an understanding of viewport performance across 9 different applications. SPECapc 3ds Max 2015 and Maya 2012 finish things up with exhaustive tests in their namesake Autodesk products.

Like SPEC, Sandra’s test suite is large, so page 5 is dedicated to four of its tests: Cryptography, Financial Analysis, Scientific Analysis, as well as memory bandwidth. Two quick and dirty gaming benchmarks are featured on page 6: Futuremark’s 3DMark, and Unigine’s Superposition. Finally, the last page includes power results (sadly, no temperatures this go around), as well as the final thoughts.

So without further ado, let’s get this train moving.

Rob Williams

Rob founded Techgage in 2005 to be an 'Advocate of the consumer', focusing on fair reviews and keeping people apprised of news in the tech world. Catering to both enthusiasts and businesses alike; from desktop gaming to professional workstations, and all the supporting software.